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Gearbox question
#766523
06/02/2009 14:02
06/02/2009 14:02
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sparco
Unregistered
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sparco
Unregistered
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As i'm a bit thick can someone tell me the final drive ratio in the LE 6 speed box please??
Trevor, John S etc.#
Thanks in advance.
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Re: Gearbox question
[Re: ]
#766639
06/02/2009 15:43
06/02/2009 15:43
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nyssa7
Unregistered
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nyssa7
Unregistered
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Fiat Coupe 20vt 6 speed:
1st Gear ratio 3.8:1 2nd Gear ratio 2.235:1 3rd Gear ratio 1.52:1 4th Gear ratio 1.156:1 5th Gear ratio 0.914:1 6th Gear ratio 0.816:1 Final drive (diff) 3.176:1
Fiat Coupe 20vt 5 speed: 1st Gear ratio 3.8:1 2nd Gear ratio 2.235:1 3rd Gear ratio 1.52:1 4th Gear ratio 1.156:1 5th Gear ratio 0.914:1 Final drive (diff) 3.111:1
and just for completeness, Alfa 156 V6 2.5 6 speed: 1st Gear ratio 3.5:1 2nd Gear ratio 2.235:1 3rd Gear ratio 1.52:1 4th Gear ratio 1.1613:1 5th Gear ratio 0.971:1 6th Gear ratio 0.816:1 Final drive (diff) 3.9375:1
so you can see the Alfa gears are more evenly spaced but the numerical higher (ie lower geared) diff will cut the top speed and fuel economy compared to Fiat box
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Re: Gearbox question
[Re: ]
#767097
06/02/2009 22:50
06/02/2009 22:50
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sparco
Unregistered
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sparco
Unregistered
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Trevor perfect mate just what i need. Just got an Alfa 6 speed box so we're cooking now. Reckon i'll just go with the race diff instead of the Q2 though.
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Re: Gearbox question
[Re: ]
#767277
07/02/2009 11:06
07/02/2009 11:06
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doug20vt
Unregistered
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doug20vt
Unregistered
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who you getting to build the box for you sparco
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Re: Gearbox question
[Re: ]
#767334
07/02/2009 12:30
07/02/2009 12:30
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sparco
Unregistered
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sparco
Unregistered
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AH motorsports in Surrey i reckon. I've already spoken to Aidy who was very helpful.
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Re: Gearbox question
[Re: ]
#767373
07/02/2009 13:31
07/02/2009 13:31
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paddy147
Unregistered
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paddy147
Unregistered
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Aidie is very honest and very helpfull too.Ive dealt with him in the past and he is allways very helpfull.
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Re: Gearbox question
[Re: ]
#767706
07/02/2009 21:33
07/02/2009 21:33
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sparco
Unregistered
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sparco
Unregistered
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Paddy that's impression i got speaking to him and having racing experience makes me feel more comfortable as he knows what i need and can offer advice.
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Re: Gearbox question
[Re: ]
#767726
07/02/2009 21:51
07/02/2009 21:51
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paddy147
Unregistered
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paddy147
Unregistered
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Aidie could have easily sold me loads of race parts for my turbo build that I didnt really need. But he was honest with me and only sold me the parts that I would deffinately need and nothing more.And he also did me a good deal too and also dropped the postsge costs down a bit too. Sond man.
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Re: Gearbox question
[Re: ]
#768068
08/02/2009 15:11
08/02/2009 15:11
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doug20vt
Unregistered
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doug20vt
Unregistered
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cheers sparco might give them a ring as wanting to do the conversion as well at some point
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Re: Gearbox question
[Re: ]
#769299
09/02/2009 23:45
09/02/2009 23:45
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Alexander_K
Unregistered
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Alexander_K
Unregistered
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Could somebody please tell me the kappa 20vt final drive (and the gearbox) ratios if they are different from the fiat coupe 20vt 5-speed box. I could not find this info so thanks in advance. Sorry for going offtopic.
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Re: Gearbox question
[Re: ]
#769381
10/02/2009 02:48
10/02/2009 02:48
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paddy147
Unregistered
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paddy147
Unregistered
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Google for it.
Thats what i did when looking for various gearbox ratios and final drives.
Last edited by paddy147; 10/02/2009 02:49.
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Re: Gearbox question
[Re: ]
#769388
10/02/2009 06:46
10/02/2009 06:46
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Alexander_K
Unregistered
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Alexander_K
Unregistered
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Yes, I did that already. In fact, I did a full internet research but I was not able to find any kappa 20vt ratios. Only on the nyssa website did I find some clues about the kappas gearbox having the same ratios as the coupe.
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Re: Gearbox question
[Re: ]
#769608
10/02/2009 14:02
10/02/2009 14:02
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nyssa7
Unregistered
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nyssa7
Unregistered
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Figures taken from my handbook:
Lancia kappa 20vt: 1st Gear ratio 3.8:1 2nd Gear ratio 2.235:1 3rd Gear ratio 1.36:1 4th Gear ratio 0.971:1 5th Gear ratio 0.811:1 Final drive (diff) 3.545:1
Strangely the kappa 2.4 (n/a) runs identical ratios to the Fiat Coupe 5 speed but with the k 20vt diff (3.545:1)
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Re: Gearbox question
[Re: ]
#769620
10/02/2009 14:13
10/02/2009 14:13
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doug20vt
Unregistered
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doug20vt
Unregistered
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would it be possible to fit the final drive from the 20v n/a to the turbo gearbox to shorten the ratios that way and still have the strength of the turbo box
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Re: Gearbox question
[Re: ]
#769646
10/02/2009 14:33
10/02/2009 14:33
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Alexander_K
Unregistered
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Alexander_K
Unregistered
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Thanks. It seems that there is no post-98 kappa manual available for download on the internet. As for the 2.4 box, I thought that it had a 3.562 final drive(well, makes no difference). Do you know why the kappa needs 7.3s and the coop only 6.5s to 100km/h. I don't think the data is correct(I'm currently deciding whether to by a kappa or a coop so i'm gathering info).
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Re: Gearbox question
[Re: ]
#769942
10/02/2009 20:20
10/02/2009 20:20
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nyssa7
Unregistered
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nyssa7
Unregistered
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kappa is a lot bigger and a lot heavier than a Coupe, doubt that does the acceleration any favours. Aerodynamically its probably superior as the top speed is much the same and again the kappa will have massively more frontal area, its 6'1" wide after all
To decide which car you want depends on what you are looking for. Fiat will be quicker, more sporty. Kappa more refined, more comfort biased (but if you have the electronic suspension you get best of both worlds), kappa much larger inside, can carry 4-5 people easily (in comfort) and boot is simply giant - used to carry 4 wheels (with tyres and tools in the boot. Kappa will be better built, the k coupe was all but hand made and build quality rivals any Audi of the era
Kappa also easier to work on, much more space around the engine, the rest of it is Alfa 166 mechanically, not Fiat
But Fiat will still be quicker!
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Re: Gearbox question
[Re: ]
#769947
10/02/2009 20:23
10/02/2009 20:23
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nyssa7
Unregistered
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nyssa7
Unregistered
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would it be possible to fit the final drive from the 20v n/a to the turbo gearbox to shorten the ratios that way and still have the strength of the turbo box don't think so but no expert on 5 speed box. In the case of the 6 speed, not possibly to swap only the diff gearing as part of it is attached to one of the gear shafts, so have to swap those in as well likely the na diff wouldn't be strong enough either looking at my gearing figures above, the k coupe 20vt box would work for you, but rare as rocking horse droppings in the UK, you might find one being broken in Italy or Germany Have no knowledge whether kappa saloon and SW 20vt have same gearing or not - the saloon is a lot more common than the coupe in Europe
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Re: Gearbox question
[Re: ]
#770077
11/02/2009 00:15
11/02/2009 00:15
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doug20vt
Unregistered
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doug20vt
Unregistered
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cheers nyssa, need to look at the alfa conversion instead
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